Home / 76,488.60-105,553.58-42,497.16

Finding the Fourth Proportional to 76,488.60, 105,553.58 and 42,497.16

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Solution

The fourth proportional to 76,488.60, 105,553.58 and 42,497.16 is: 58,645.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,488.60 : 105,553.58 = 42,497.16 : x
  2. Step 2: Convert to fraction form
    76,488.60/105,553.58 = 42,497.16/x
  3. Step 3: Cross multiply
    76,488.60x = 105,553.58 × 42,497.16
  4. Step 4: Simplify right side
    76,488.60x = 4,485,727,008.57
  5. Step 5: Solve for x
    x = 4,485,727,008.57/76,488.60
  6. Step 6: Final answer
    x = 58,645.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.